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Groups > linux.kernel > #1500168
| From | Stephane Eranian <eranian@google.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 8/9] perf/jit: Check JITHEADER_VERSION |
| Date | 2016-10-13 13:10 +0200 |
| Message-ID | <srM3E-2I3-47@gated-at.bofh.it> (permalink) |
| References | <srM3D-2I3-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
From: Stefano Sanfilippo <ssanfilippo@chromium.org>
Check the version number when opening a jitdump file.
Accept older versions, but not newer ones.
Signed-off-by: Stefano Sanfilippo <ssanfilippo@chromium.org>
Signed-off-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Stephane Eranian <eranian@google.com>
---
tools/perf/util/jitdump.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/tools/perf/util/jitdump.c b/tools/perf/util/jitdump.c
index c47fba63274b..c5dabb3a81fd 100644
--- a/tools/perf/util/jitdump.c
+++ b/tools/perf/util/jitdump.c
@@ -180,6 +180,12 @@ jit_open(struct jit_buf_desc *jd, const char *name)
header.elf_mach,
jd->use_arch_timestamp);
+ if (header.version > JITHEADER_VERSION) {
+ pr_err("wrong jitdump version %u, expected " STR(JITHEADER_VERSION),
+ header.version);
+ goto error;
+ }
+
if (header.flags & JITDUMP_FLAGS_RESERVED) {
pr_err("jitdump file contains invalid or unsupported flags 0x%llx\n",
(unsigned long long)header.flags & JITDUMP_FLAGS_RESERVED);
--
1.9.1
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[PATCH 0/9] perf/jit: various improvements Stephane Eranian <eranian@google.com> - 2016-10-13 13:10 +0200
[PATCH 1/9] perf/jit: improve error messages from JVMTI Stephane Eranian <eranian@google.com> - 2016-10-13 13:10 +0200
Re: [PATCH 1/9] perf/jit: improve error messages from JVMTI Nilay Vaish <nilayvaish@gmail.com> - 2016-10-13 22:30 +0200
Re: [PATCH 1/9] perf/jit: improve error messages from JVMTI Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-10-14 13:20 +0200
Re: [PATCH 1/9] perf/jit: improve error messages from JVMTI Stephane Eranian <eranian@google.com> - 2016-10-14 15:30 +0200
Re: [PATCH 1/9] perf/jit: improve error messages from JVMTI Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-10-14 17:30 +0200
Re: [PATCH 1/9] perf/jit: improve error messages from JVMTI Stephane Eranian <eranian@google.com> - 2016-10-17 16:00 +0200
[tip:perf/core] perf jit: Improve error messages from JVMTI tip-bot for Stephane Eranian <tipbot@zytor.com> - 2016-10-24 21:10 +0200
[PATCH 5/9] perf/jit: do not assume pgoff is zero Stephane Eranian <eranian@google.com> - 2016-10-13 13:10 +0200
[tip:perf/core] perf jit: Do not assume pgoff is zero tip-bot for Stefano Sanfilippo <tipbot@zytor.com> - 2016-10-24 21:10 +0200
[PATCH 8/9] perf/jit: Check JITHEADER_VERSION Stephane Eranian <eranian@google.com> - 2016-10-13 13:10 +0200
[tip:perf/core] perf jit: Check JITHEADER_VERSION tip-bot for Stefano Sanfilippo <tipbot@zytor.com> - 2016-10-24 21:10 +0200
[PATCH 3/9] perf/jit: remove unecessary padding in jitdump file Stephane Eranian <eranian@google.com> - 2016-10-13 13:10 +0200
[tip:perf/core] perf jit: Remove unecessary padding in jitdump file tip-bot for Stephane Eranian <tipbot@zytor.com> - 2016-10-24 21:00 +0200
[PATCH 6/9] perf/jit: add unwinding support Stephane Eranian <eranian@google.com> - 2016-10-13 13:10 +0200
[tip:perf/core] perf jit: Add unwinding support tip-bot for Stefano Sanfilippo <tipbot@zytor.com> - 2016-10-24 21:10 +0200
[PATCH 2/9] perf/jit: enable jitdump support without dwarf Stephane Eranian <eranian@google.com> - 2016-10-13 13:10 +0200
Re: [PATCH 2/9] perf/jit: enable jitdump support without dwarf Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-10-13 20:20 +0200
Re: [PATCH 2/9] perf/jit: enable jitdump support without dwarf Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-10-13 21:00 +0200
Re: [PATCH 2/9] perf/jit: enable jitdump support without dwarf Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-10-13 21:20 +0200
Re: [PATCH 2/9] perf/jit: enable jitdump support without dwarf Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-10-13 21:50 +0200
Re: [PATCH 2/9] perf/jit: enable jitdump support without dwarf Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-10-13 21:40 +0200
[tip:perf/core] perf jit: Enable jitdump support without dwarf tip-bot for Maciej Debski <tipbot@zytor.com> - 2016-10-24 21:00 +0200
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